Census ACS · Missouri
ZIP Code 63021
ZIP code 63021 is located in Missouri with a population of 56,297. The median household income is $113,822 and the median home value is $324,300.
56,297
Population
$113,822
Median Income
$324,300
Median Home Value
40.4
Median Age
Race & Ethnicity
| White | 77.5% |
| Black | 2.5% |
| Asian | 0.0% |
| Hispanic (any race) | 0.6% |
Male: 49.2% · Female: 50.8%
Economy & Income
$113,822
Median Household Income
$54,248
Per Capita Income
3.2%
Poverty Rate
Housing
$324,300
Median Home Value
$1,362
Median Rent
79.0%
Homeownership
Education
97.6%
High School+
62.1%
Bachelor's Degree+
Nearby ZIP Codes
Largest cities in Missouri
Part of Missouri
Metro areas in Missouri
Frequently Asked Questions
ZIP code 63021 in Missouri has a population of 56,297 according to latest Census ACS data.
The median household income in ZIP 63021 is $113,822. The per capita income is $54,248. The poverty rate is 3.2%.
ZIP code 63021 is located in Missouri.
More from Missouri
Data for ZIP Code Tabulation Area (ZCTA) 63021 from the American Community Survey 5-Year estimates. ZCTAs approximately correspond to USPS ZIP code delivery areas but are built from Census blocks and may not match exactly.
Educational attainment is the headline number in ZIP 63021: 62.1% of adults 25 and older have a four-year degree. With 56,297 residents, ZIP 63021 is a ZIP code in Missouri.
Households take in a median $113,822, comfortably above the US median of $78,538. Poverty is relatively low for US ZIP codes at 3.2%, below the national 12.4%. A typical home is worth $324,300, with typical rent around $1,362.
Degree attainment is near the top of the range for US ZIP codes: 62.1% of adults 25+ hold a bachelor’s, above the 35.0% national rate.
The education numbers are the throughline: a college-heavy population in ZIP 63021 usually coincides with higher incomes and a workforce concentrated in professional and information industries.
Source: U.S. Census Bureau ACS, 2026.